摘要：

高锰酸盐指数是一个相对性的条件指标，不同的条件因素都会影响其测定结果。为找出准确测定高锰酸盐指数的方法，从实验用水、加热时间、高锰酸钾标准溶液的浓度、反应体系的酸度以及滴定条件的控制等方面进行分析，提出测定高锰酸盐指数的最佳条件，并指出测定过程中的注意事项，对准确测定高锰酸盐指数具有重要意义。

关键词: 高锰酸盐指数, 条件因素, 准确性

Abstract:

Permanganate index is a relative conditional indicator, because different conditional factors affect the test results. In order to find out an accurate method for the determination of permanganate index, the experiments were carried out to find the optimum conditions from the aspects of experimental water, heating time, concentration of potassium permanganate standard solution, acidity of the reaction system and control of titration conditions. Meanwhile, the matters needing attention in the determination process were pointed out, which is of great significance for the accurate determination of the permanganate index.

Key words: permanganate index, conditional factors, accurate

中图分类号: 

• X830.1